CN102878256A

CN102878256A - Quick-shift transmission

Info

Publication number: CN102878256A
Application number: CN2012103795406A
Authority: CN
Inventors: 郭云鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-10-09
Filing date: 2012-10-09
Publication date: 2013-01-16
Anticipated expiration: 2032-10-09
Also published as: CN102878256B

Abstract

The invention discloses a quick-shift transmission which comprises an input shaft, an output shaft, first clutches, second clutches, a plurality of gear pairs different in gear ratio and a plurality of gearshifts, wherein each first clutch and each second clutch are arranged on the input shaft, the gear pairs are arranged on the input shaft and the output shaft respectively, and a gear wheel in each gear pair is sleeved on the corresponding gearshift. The integral structure of the transmission is simplified; time needed by upshifting is shorter, and appropriate power output in a gear shifting process is guaranteed; and time needed by downshifting is shorter, and operating steps are reduced.

Description

The crash change of speed speed changer

Technical field

What the present invention relates to is a kind of transmission for vehicles, in particular a kind of crash change of speed speed changer.

Background technique

Seven common fast dual clutch transmission structure are at present: two clutches connect respectively outer hollow shaft and inner solid shaft.Wherein outer

hollow shaft control

2,4,6, R shelves, 1,3,5,7 grade of inner solid shaft control.When speed changer operated, one group of gear was engaged, and approaches when shifting gears, and the gear of next group gear section is by preliminary election, but clutch still is in separated state; When gearshift, the gear during a clutch will use separates, and another clutch engagement is by the gear of pre-gear selecting section simultaneously.And so-called gear shift only is to utilize hydraulic system to do conversion among two groups of clutches power transmission.Dual clutch transmission structure is complicated, and is also higher to the requirement of manufacturing process, so cost also is higher; Speed changer can not be judged driver's intention normally in the road conditions of complexity, thereby meshes frequently and separate the preliminary election gear.And mesh frequently and separate gear, synchronizer is reduced working life, and produce a large amount of heats, strengthen the burden to sink.

Seven fast hands are from arranging gearbox: use four independently selector forks, two adjacent shifting gears are then by different selector fork controls.Four independent shift forks are controlled respectively 1 gear and reverse gear; 3 gears and 5 gears, 2 gears and 4 gears, 6 gears and 7 gears that is to say, keep off up to 6 from 1 and keeping off, two adjacent gears all by two independently shift fork control respectively.When two adjacent gears will carry out the gear switching, when the gear of selector fork and current gear breaks away from, another shift gear has begun engagement, and the action of selector fork has activated electric clutch (cut off engine power or connect engine power) simultaneously, because three actions almost carry out synchronously, therefore so that whole process needed time greatly shorten.But in shift process, produce easily power interruption, and higher to precision and the rate request of Servocontrol device.

Summary of the invention

The object of the invention is to overcome the deficiencies in the prior art, a kind of crash change of speed speed changer is provided, simplify mechanical structure and the gear shift operation process of speed changer, realize crash change of speed, and guarantee that power suitable in the shift process connects.

The present invention is achieved by the following technical solutions, the present invention includes input shaft, output shaft, first clutch, second clutch, some teeth than different gear pairs and some gearshifts; Described first clutch and second clutch are arranged at respectively on the input shaft, and gear pair is arranged at respectively on input shaft and the output shaft, and the gearwheel in the gear pair is set on the gearshift.

Described gearshift comprises the axle collar, building ring and axle sleeve, and described building ring is set on the axle sleeve, and the axial two ends of building ring arrange the axle collar, the gearwheel in the gear pair be set on the building ring and with the building ring Spielpassung.

The outer wall of described axle sleeve is provided with the inclination spline, and the inwall of building ring and the spline on the axle sleeve are complementary.

The sidewall of described building ring is provided with the angled protrusions of extending to two ends vertically, and the axle collar that is positioned at the axial two ends of building ring is provided with the inclined-plane that is complementary with described angled protrusions.

Described input shaft and output shaft are splined shaft.

Described gear pair comprises gear pair and the reverse gear pair of nine shelves, wherein: the gear pair of nine shelves comprises that respectively two teeth are than different gears, the reverse gear pair comprises that three teeth are than different gears, first grade of small gear to the 5th grade of gear pair, the small gear in the reverse gear pair link to each other with input shaft by spline successively, and the 6th grade of small gear to the 9th grade of gear pair links to each other with output shaft by spline successively.

Between described the 9th grade of gear pair and the 7th grade of gear pair, between the 8th grade of gear pair and the six step tooth wheel set, between the 5th grade of gear pair and the reverse gear pair, between fourth speed gear pair and the second gear gear pair, be respectively equipped with servocontroller between third gear gear pair and first grade of gear pair.

Described first clutch connects respectively power end and input shaft, and second clutch connects respectively the gearwheel in input shaft and the 9th grade of gear pair.

The present invention has the following advantages compared to existing technology: the combination force by second clutch allows the most high-grade gear pair work and cooperate with engine and to make the transmission input shaft rotating speed reduce to finish shift-up action; Utilize engine power to make the transmission input shaft rotating speed raise to finish shift-down action; In the shift-up action, the torsion that the combination of second clutch can make axle act on the work gear joint reduces until be zero, and the gear at this moment working can be removed automatically; In the shift-down action, the torsion that open out can make axle act on the work gear joint is increased by negative value until be zero (before the shift-down action, engine is done negative work, plays braking action), and the gear at this moment working can be removed equally automatically; The overall structure of speed changer of the present invention is simplified; The shifting up operation needed time is shorter and guaranteed that suitable power is exported in the gearshift procedure; The process that lowers category needed time is shorter and reduced operating procedure.

Description of drawings

Fig. 1 is structural representation of the present invention;

Fig. 2 is the decomposing schematic representation of gearshift.

Embodiment

The below elaborates to embodiments of the invention, and present embodiment is implemented under take technical solution of the present invention as prerequisite, provided detailed mode of execution and concrete operating process, but protection scope of the present invention is not limited to following embodiment.

As shown in Figure 1, present embodiment comprises that input shaft 1, output shaft 2, first clutch 3, second clutch 4, ten teeth are than different gear pairs and ten gearshifts 5; Described first clutch 3 and second clutch 4 are arranged at respectively on the input shaft 1, and gear pair is arranged at respectively on input shaft 1 and the output shaft 2, and the gearwheel in the gear pair is set on the gearshift 5.Described input shaft 1 and output shaft 2 are splined shaft.

Described ten gear pairs comprise gear pair and the reverse gear pair 60 of nine shelves, wherein: the gear pair of nine shelves comprises that respectively two teeth are than different gears, reverse gear pair 60 comprises that three teeth are than different gears, first grade links to each other with input shaft 1 by spline successively to the small gear of the 5th grade of gear pair, small gear in the reverse gear pair 60, and the 6th grade of small gear to the 9th grade of gear pair links to each other with output shaft 2 by spline successively.Nine forward gears gear pairs respectively are made of two gears in the present embodiment, and reverse gear pair 60 is made of three gears, and all is in normal engagement, and the intermediate gear of reverse gear is not connected with input shaft 1 or output shaft 2.

Between described the 9th grade of gear pair 69 and the 7th grade of gear pair 67, between the 8th grade of gear pair 68 and the six step tooth wheel set 66, between the 5th grade of gear pair 65 and the reverse gear pair 60, between fourth speed gear pair 64 and the second gear gear pair 62, be respectively equipped with servocontroller between third gear gear pair 63 and first grade of gear pair 61.

Described first clutch 3 connects respectively power end and input shaft 1, and second clutch 4 connects respectively the gearwheel in input shaft 1 and the 9th grade of gear pair 69.

As shown in Figure 2, described gearshift 5 comprises the axle collar 51, building ring 52 and axle sleeve 53, described building ring 52 is set on the axle sleeve 53, and the axial two ends of building ring 52 arrange the axle collar 51, the gearwheel in the gear pair be set on the building ring 52 and with building ring 52 Spielpassung.

The outer wall of described axle sleeve 53 is provided with inclination spline 531, and the spline on the inwall of building ring 52 and the axle sleeve 53 is complementary.

The sidewall of described building ring 52 is provided with the angled protrusions 521 of extending to two ends vertically, and the axle collar 51 that is positioned at the axial two ends of building ring 52 is provided with the inclined-plane that is complementary with described angled protrusions 521.

The building ring 52 of gearshift 5 should have good elasticity and higher intensity.When mounted suitable pretightening force to be arranged, be used for overcoming the centrifugal force that it produces when rotating with axle, and the demand when guaranteeing that its reset speed can satisfy work.The axle collar 51 is under the pressure of servocontroller, give 52 1 of building rings by the outside pressure in axle center, overcome the pretightening force of building ring 52 to pressure of gearwheel internal surface of gear pair, under the effect of this pressure, they are linked together, because the end face of axle sleeve 53 outer wall inclination splines 531 is the effect of ramp structure, axle sleeve 53 also can provide one by the outside pressure in axle center when providing a rotary torsion to building ring 52, and the size of these two power becomes certain proportional relationship, this pressure acts on by building ring 52 on the internal surface of gear pair gearwheel and makes both produce frictional force, and the rotary torsion that acts on the building ring 52 at the lower axle sleeve 53 of the effect of frictional force is delivered on the gear pair gearwheel.After removing servocontroller and acting on pressure on the axle collar 51, if the rotary torsion that axle sleeve 53 acts on the building ring 52 reduces, also can be reduced by the outside pressure in axle center on its effect building ring 52 so thereupon, the centrifugal force that produces when 52 rotations of this pressure and building ring and less than building ring 52 pretightening force own the time, 52 pairs of gear pair gearwheels of building ring internal surface does not have pressure, and gearshift separates with the gear pair gearwheel.

Shift-up action: Servocontrol device remove to work gear joint gearshift 5 axial pressures in a flash, second clutch 4 combination under the driving of servomechanism installation, according to the requirement to gearshift blanking time and power output, servomechanism installation by clutch is adjusted the throttle of engine the combination force of second clutch 4 and the servomechanism installation of engine, when the rotating speed for the treatment of transmission input shaft 1 drops to next gear in conjunction with required rotating speed, second clutch 4 separates, accelerator oil rest, Servocontrol device is to 5 one axial pressures of gearshift of target gear pair simultaneously.

Downshift action: Servocontrol device is removed to gearshift 5 axial pressures of work gear joint in a flash, the rotating speed of transmission input shaft 1 rises rapidly under the driving of engine power, according to the requirement to shifting gears blanking time, servomechanism installation by engine is adjusted the throttle of engine, when treating that rise of rotational speed arrives the required rotating speed of next gear, accelerator oil rest, Servocontrol device is to 5 one axial pressures of gearshift of target gear pair simultaneously.

Claims

1. a crash change of speed speed changer is characterized in that: comprise that input shaft (1), output shaft (2), first clutch (3), second clutch (4), some teeth are than different gear pairs and some gearshifts (5); Described first clutch (3) and second clutch (4) are arranged at respectively on the input shaft (1), and gear pair is arranged at respectively on input shaft (1) and the output shaft (2), and the gearwheel in the gear pair is set on the gearshift (5).

2. crash change of speed speed changer according to claim 1, it is characterized in that: described gearshift (5) comprises the axle collar (51), building ring (52) and axle sleeve (53), described building ring (52) is set on the axle sleeve (53), the axial two ends of building ring (52) arrange the axle collar (51), the gearwheel in the gear pair be set in building ring (52) upper and with building ring (52) Spielpassung.

3. crash change of speed speed changer according to claim 2, it is characterized in that: the outer wall of described axle sleeve (53) is provided with inclination spline (531), and the spline on the inwall of building ring (52) and the axle sleeve (53) is complementary.

4. crash change of speed speed changer according to claim 2, it is characterized in that: the sidewall of described building ring (52) is provided with the angled protrusions (521) of extending to two ends vertically, and the axle collar (51) that is positioned at the axial two ends of building ring (52) is provided with the inclined-plane that is complementary with described angled protrusions (521).

5. crash change of speed speed changer according to claim 1, it is characterized in that: described input shaft (1) and output shaft (2) are splined shaft.

6. crash change of speed speed changer according to claim 1, it is characterized in that: described gear pair comprises gear pair and the reverse gear secondary (60) of nine shelves, wherein: the gear pair of nine shelves comprises that respectively two teeth are than different gears, reverse gear secondary (60) comprises that three teeth are than different gears, small gear in first grade of small gear to the 5th grade of gear pair (65), the reverse gear secondary (60) links to each other with input shaft (1) by spline successively, and the 6th grade of small gear to the 9th grade of gear pair (69) links to each other with output shaft (2) by spline successively.

7. crash change of speed speed changer according to claim 6, it is characterized in that: between described the 9th grade of gear pair (69) and the 7th grade of gear pair (67), between the 8th grade of gear pair (68) and the six step tooth wheel set (66), between the 5th grade of gear pair (65) and the reverse gear secondary (60), between fourth speed gear pair (64) and the second gear gear pair (62), be respectively equipped with servocontroller between third gear gear pair (63) and the first grade of gear pair (61).

8. crash change of speed speed changer according to claim 6, it is characterized in that: described first clutch (3) connects respectively power end and input shaft (1), and second clutch (4) connects respectively the gearwheel in input shaft (1) and the 9th grade of gear pair (69).